The Greater Mass blood clinic is a location in the Commonwealth in 2287.


This is a small, heavily damaged outpatient clinic that once performed blood tests for Fort Hagen. The place has become swarmed with bloatflies and bloodbugs that have taken a liking to the blood packs here.[1]


The building is infested with bloatflies and bloodbugs. The walls and floors have numerous holes, allowing the insects to travel easily between floors and sections in ways that humans cannot always follow. There are three main sections of the building, and getting between them can require leaving the building and going around the outside: the entrance, a "left" section with access to the upper floor with the locked lab behind a terminal, and the "right" section allowing access to the basement and storage room behind an Expert level locked door. It is possible to drop through the floor of the upper section to bypass the locked door, and in the basement, a password can be found to bypass the terminal and reach the lab.

A high level infected bloodbug guards the basement section and can be difficult for a lower level player character to defeat. Apart from the bloodbug, the building contains a large number of blood packs in the basement.

Notable lootEdit

  • Massachusetts Surgical Journal issue #4 - On the second floor, in the room behind the security door. The door can only be opened through the Advanced-locked terminal.
  • A large number of blood packs (20+) can be found in the basement.
  • Syringer rifle - In the basement.
  • Three blood clinic keys - One is on a desk in a small room on the second floor. Another is on the ground floor next to a corpse by the southwest side door entrance (on the inside of the building). A third key can be found in the basement on a desk in the room before the lab/blood storage room. Opens the outside door and the safe in the lab.
  • Blood clinic password - Inside the exam room terminal on the ground floor close to the southwest side door entrance. Opens locked the lab room.
  • South of the clinic is a group of warehouses and the eastern-most one contains a partially complete leveled set of power armor. This warehouse also contains four power armor stations.

Related questsEdit


  • There is a little background on the last general of Fort Hagen here.[clarification needed]
  • This is a possible location during the quest Quartermastery given to the player character by Scribe Haylen.
  • When at this location, companions make comments, which are activated in the basement storage room.
Location comments
Character Comment
Cait "Maybe we should help ourselves... I might know a few places we can unload the stuff."
Codsworth "This must be the clinic's storage. Bloody impressive, wouldn't you say, sir/mum?"
Curie "We should mark this location. Blood transfusions are useful in a variety of medical situations."
Danse "If this blood's still viable, it would be quite useful to the Brotherhood."
Deacon "Want to top off? I'm full on blood, but if you're a quart low we can fix you up."
John Hancock "So this was either a blood bank or home to the laziest bunch of vampires..."
Nick Valentine "Bloodbug paradise."
Piper Wright "Warm, two-century-old bags of blood. Lovely."
Preston Garvey "Huh. Some of this looks like it might still be good."
Robert MacCready "It's going to be tough finding anyone who trusts these blood packs. Who knows how long they've been sitting here?"
X6-88 "That's real blood. Interesting."


The Greater Mass blood clinic appears only in Fallout 4.


PCIcon pc There may be a glitched blue door on the first floor that cannot be interacted with, however, the player can pass through it.[verified]



  1. Fallout 4 Vault Dweller's Survival Guide Collector's Edition p.310: "[3.13] GREATER MASS BLOOD CLINIC
    This is a small, heavily damaged outpatient clinic that once performed blood tests for the military base. The mutated wildlife has taken a liking to the blood packs here.
    (Fallout 4 Vault Dweller's Survival Guide Map)
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